Obviously, a somewhat different setup, but you may take my experidnce into consideration.
In my Pro-Ject Streambox Ultra, I tried to substitute the rpi 3 it was ‘born with’ with a rpi 4 (both computer modules).
It sort of worked (with the most recent verdion of Volumio) - at least for a while after booting the device.
Then it stopped playing when changing source…
So now the rpi 4 is just sitting waiting for another idea;-)
The Pro-Ject is designed specifically to use the rpi cm3, so it’s not too surprising, that the 4 did not work that well.
I may give it another try, a few updates down the road.
I may even try to install the Pro-Ject version of Volumio to it, although that’s rather outdated and lacks support for Tidal Connect.
Getting Tidal Connect was one of the reasons to install ‘real’ Volumio. Another was to continue getting updates - it seems like Pro-Ject have given up on that, entirely:-(
Upgrading to the rpi 4, I was hoping both for better performance (especially in the future) and to prolong the time where the hardware supported the latest version of Volumio.
So far not too successful, though.